ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,900, issued on June 3, was assigned to Mitsubishi Electric Corp. (Tokyo).

"Maintenance management system, maintenance management method, and computer readable medium" was invented by Takashi Matsumoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A maintenance management system is provided with a management device that manages an air conditioner operated by an operation device and provided with a maintenance support device that supports maintenance of the air conditioner. A candidate display unit of the management device selects based on lifestyle information that shows a lifestyle of a user, a type to be presented to the user from among a pl...